/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.userguide.mapping.basic;
import javax.persistence.Embeddable;
import javax.persistence.Embedded;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import org.hibernate.annotations.Target;
import org.hibernate.jpa.test.BaseEntityManagerFunctionalTestCase;
import org.junit.Test;
import static org.hibernate.testing.transaction.TransactionUtil.doInJPA;
import static org.junit.Assert.assertEquals;
/**
* @author Vlad Mihalcea
*/
public class TargetTest extends BaseEntityManagerFunctionalTestCase {
@Override
protected Class<?>[] getAnnotatedClasses() {
return new Class<?>[] {
City.class,
};
}
@Test
public void testLifecycle() {
//tag::mapping-Target-persist-example[]
doInJPA( this::entityManagerFactory, entityManager -> {
City cluj = new City();
cluj.setName( "Cluj" );
cluj.setCoordinates( new GPS( 46.77120, 23.62360 ) );
entityManager.persist( cluj );
} );
//end::mapping-Target-persist-example[]
//tag::mapping-Target-fetching-example[]
doInJPA( this::entityManagerFactory, entityManager -> {
City cluj = entityManager.find( City.class, 1L );
assertEquals( 46.77120, cluj.getCoordinates().x(), 0.00001 );
assertEquals( 23.62360, cluj.getCoordinates().y(), 0.00001 );
} );
//end::mapping-Target-fetching-example[]
}
//tag::mapping-Target-example[]
public interface Coordinates {
double x();
double y();
}
@Embeddable
public static class GPS implements Coordinates {
private double latitude;
private double longitude;
private GPS() {
}
public GPS(double latitude, double longitude) {
this.latitude = latitude;
this.longitude = longitude;
}
@Override
public double x() {
return latitude;
}
@Override
public double y() {
return longitude;
}
}
@Entity(name = "City")
public static class City {
@Id
@GeneratedValue
private Long id;
private String name;
@Embedded
@Target( GPS.class )
private Coordinates coordinates;
//Getters and setters omitted for brevity
//end::mapping-Target-example[]
public Long getId() {
return id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Coordinates getCoordinates() {
return coordinates;
}
public void setCoordinates(Coordinates coordinates) {
this.coordinates = coordinates;
}
//tag::mapping-Target-example[]
}
//end::mapping-Target-example[]
}